Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Amount, after accumulated amortization, of debt premium.

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Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

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Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

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The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer).

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Debt - Issuance of 4.125% Senior Unsecured Notes Due 2028; Redemption of the 2024 Notes (Details) - USD ($) $ in Thousands			3 Months Ended
	Mar. 07, 2020	Feb. 11, 2020	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Debt Instrument [Line Items]
Cash paid for interest			$ 38,049	$ 30,493
Premium on senior unsecured notes			$ 18,838		$ 2,280
4.125% Senior Notes Due 2028 \| Senior Notes
Debt Instrument [Line Items]
Debt instrument, face amount		$ 400,000
Debt instrument interest rate stated percentage		4.125%
Proceeds from debt, net of issuance costs		$ 393,600
6.250% Senior Unsecured Notes Due 2024 \| Senior Notes
Debt Instrument [Line Items]
Debt instrument, face amount	$ 400,000
Debt instrument interest rate stated percentage	6.25%
Proceeds from debt, net of issuance costs	$ 4,800
Debt instrument, redemption price, percentage	104.688%
Proceeds from issuance of senior long term debt	$ 425,500
Payment for debt extinguishment or debt prepayment cost	18,800
Cash paid for interest	6,700
Premium on senior unsecured notes	$ 2,200